“She’ll be a great mom. She’s already drastically changed her life," Guadagnino told PEOPLE at Saturday's 23rd Annual GLAAD Media Awards in New York. "I think this is a good wakeup call, so I think she’ll be cool."

He also revealed he was surprised by the news she's expecting.

“I had no idea. Actually people would call me, like, 'Is the show still gonna work?'…And I was like, 'What are you talking about, she’s not pregnant.' And then all of the sudden, that whole thing came out and I was like, Oh my God.”

As for what Snooki should name the little one, he suggested, "Maybe Pauly."

Even with so much change among the cast, including a challenging time for Mike "The Situation" Sorrentino, who has revealed he sought treatment for a "prescription medication problem," Guadagnino says he's not worried about the show's future and expects all the cast will return to the series.

"Everyone’s saying they’re not going to be there, but I don’t know if they're going to be there or not. I have a great feeling they’re gonna be there and nothing’s going to change," he said.

While he he's not sure how Sorrentino is doing, saying "I don’t really speak to him in general," Guadagnino did add, “Of course, I wish him well.”